Obsessive-compulsive disorder (OCD) is an
anxiety disorder. A person with OCD has unwanted repetitive thoughts and behaviors.
The cause is of OCD is unknown. OCD may be due to a combination neurobiological, environmental, genetic, and psychological factors. An imbalance of a brain chemical called serotonin may play a major role.
The genes that you inherit from your family may play a role in the development of OCD.
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OCD is more common in late adolescence into early adulthood. Your risk is also higher if you have family members with a history of OCD.
OCD may cause:
Obsessions—unwanted, repetitive, and intrusive ideas, impulses, or images; common obsessions include:
Persistent fears that harm may come to self or a loved oneUnreasonable concern with being contaminatedUnreasonable concerns about safetyUnacceptable religious, violent, or sexual thoughtsExcessive need to do things correctly or perfectlyPersistent worries about a tragic event
Compulsions—repetitive behaviors or mental acts to reduce the distress associated with obsessions; common compulsions include:
Excessive checking of door locks, stoves, water faucets, and light switchesRepeatedly making lists, counting, arranging, or aligning thingsCollecting and hoarding useless objectsRepeating routine actions a certain number of times until it feels rightUnnecessary rereading and rewritingMentally repeating phrasesRepeatedly washing hands
Conditions associated with OCD include: Other anxiety disordersDepressionOrganic brain syndromeTourette syndromeAttention deficit disorder
If you have OCD, you may know that your thoughts and compulsions do not make sense, but you are unable to stop them.
OCD is usually diagnosed through a psychiatric assessment. OCD is diagnosed when obsessions and/or compulsions either: Cause significant distressInterfere with your ability to properly perform at work, school, or in relationships
Treatment reduces OCD thoughts and compulsions, but does not completely eliminate them. Common treatment approaches include a combination of medication and therapy.
Selective serotonin reuptake inhibitors (SSRIs) reduce OCD symptoms by affecting serotonin levels. Tricyclic antidepressants can also help treat symptoms.
Your doctor may try using other psychiatric medications to help control your condition.
Behavioral therapy addresses the actions associated with OCD.
(CBT) addresses both the thought processes and the actions associated with OCD.
OCD is tailored to meet your particular needs.
Examples of therapies used to treat OCD include: Exposure and response prevention—involves gradually confronting the problem object or obsession without giving into the compulsive ritual linked to itAversion therapy—involves using a painful stimulus to prevent OCD behaviorThought switching—involves learning to replace negative thoughts with positive thoughtsFlooding—involves being exposed to an object that causes OCD behaviorImplosion therapy—involves being repeatedly exposed to an object that causes fearThought stopping—involves learning how to stop negative thoughts
Electroconvulsive therapy (ECT) has had some success for those with OCD that is difficult to treat. However, the treatment is not for everyone. Be sure to discuss the benefits and harms of ECT treatment with your doctor.
There are no guidelines for preventing OCD because the cause is not known. However, early intervention may be helpful.
Obsessive-compulsive disorder (OCD). National Institute of Mental Health, National Institutes of Health website. Available at:
http://www.nimh.nih.gov/health/topics/obsessive-compulsive-disorder-ocd/index.shtml. Accessed August 21, 2014.
OCD risk higher when several variations in gene occur together. National Institute of Mental Health website. Available at:
http://www.nimh.nih.gov/science-news/2008/ocd-risk-higher-when-several-variations-in-gene-occur-together.shtml. Accessed August 21, 2014.
Last reviewed August 2015 by Adrian Preda, MD
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.
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